/* Support页面专用样式 */

/* 搜索区域样式 */
.hero-section {
    position: relative;
    height: 80vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 80px;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: white;
    max-width: 800px;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    width: 100%;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #f3ecec;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    color: #f1f0f0;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

/* 搜索框样式 */
.search-container {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.search-box {
    display: flex;
    align-items: center;
    background: white;
    border-radius: 50px;
    padding: 0.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    max-width: 500px;
    width: 100%;
}

.search-box i {
    color: #666;
    margin: 0 1rem;
    font-size: 1.2rem;
}

.search-box input {
    flex: 1;
    border: none;
    outline: none;
    padding: 1rem;
    font-size: 1.1rem;
    background: transparent;
}

.search-box input::placeholder {
    color: #999;
}

.search-btn {
    background: #2563eb;
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-btn:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.4);
}

/* 产品支持区域样式 */
.product-support-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    position: relative;
}

.product-support-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, #e2e8f0 50%, transparent 100%);
}

.section-title {
    text-align: center;
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: #0f172a;
    letter-spacing: -0.02em;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: #64748b;
    margin-bottom: 4rem;
    font-weight: 400;
}

/* 分类标签样式 */
.category-tabs {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
    padding: 0 1rem;
}

.tab-btn {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(226, 232, 240, 0.8);
    color: #475569;
    padding: 0.875rem 1.75rem;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: default;
    white-space: nowrap;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.95);
    border-color: #cbd5e1;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* 产品网格样式 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.product-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 24px;
    padding: 0;
    text-align: left;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #252c36, #625485, #c05b60);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.product-card:hover::before {
    opacity: 1;
}

.product-image {
    width: 100%;
    height: 320px;
    margin: 0;
    border-radius: 0;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    position: relative;
}

.product-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(to top, rgba(255, 255, 255, 0.9), transparent);
    pointer-events: none;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateY(-20px);
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-content {
    padding: 2rem;
    position: relative;
}

.product-card h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 0.75rem; 
    line-height: 1.3;
    letter-spacing: -0.01em; 
    text-align: center;
    transition: color 0.3s ease;
}

.product-card:hover h3 {
    color: #000000;
}

.product-card p {
    color: #64748b;
    line-height: 1.6;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.product-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    width: 100%;
}

.product-category {
    font-size: 0.8rem;
    color: #0e0d11;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: rgba(139, 92, 246, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    margin-right: auto; 
}

.product-plus-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #4e6888, #8266c7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    margin-left: auto;
}

.product-card:hover .product-plus-icon {
    transform: scale(1.1) rotate(90deg);
    box-shadow: 0 6px 16px rgba(159, 165, 175, 0.4);
}

/* 常见问题区域样式 */
.faq-section {
    padding: 5rem 0;
    background: white;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid #e2e8f0;
    border-radius: 15px;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: #9cabcc;
    box-shadow: 0 4px 15px rgba(233, 236, 241, 0.1);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: #f8fafc;
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
}

.faq-question h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e293b;
    margin: 0;
    cursor: pointer;
    transition: color 0.3s ease;
}

.faq-question:hover h3 {
    color: #2563eb;
}

.faq-question:hover {
    background: #f1f5f9;
}

.faq-question i {
    color: #64748b;
    transition: transform 0.3s ease;
    cursor: pointer;
    font-size: 1.2rem;
}

.faq-question:hover i {
    color: #2563eb;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    opacity: 0;
}

.faq-item.active .faq-answer {
    padding: 1.5rem;
    max-height: 300px;
    opacity: 1;
}

.faq-answer p {
    color: #64748b;
    line-height: 1.6;
    margin: 0;
}

/* 售后咨询区域样式 */
.contact-section {
    padding: 5rem 0;
    background: #f8fafc;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: #2563eb;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    color: white;
    font-size: 1.5rem;
}

.contact-details h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1e293b;
}

.contact-details p {
    font-size: 1.1rem;
    color: #2563eb;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-details span {
    color: #64748b;
    font-size: 0.9rem;
}

/* 联系表单样式 */
.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.contact-form h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: #1e293b;
    text-align: center;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #374151;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.submit-btn {
    width: 100%;
    background: #2563eb;
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.4);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
        color: #000000;
    }
    
    .hero-content p {
        font-size: 1.1rem;
        color: #000000;
    }
    
    .search-box {
        flex-direction: column;
        border-radius: 15px;
        padding: 1rem;
    }
    
    .search-box input {
        margin: 1rem 0;
        text-align: center;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
        margin-bottom: 3rem;
    }
    
    .category-tabs {
        gap: 0.75rem;
        margin-bottom: 3rem;
    }
    
    .tab-btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 0 1rem;
    }
    
    .product-card {
        border-radius: 20px;
    }
    
    .product-image {
        height: 160px;
    }
    
    .product-content {
        padding: 1.5rem;
    }
    
    .product-card h3 {
        font-size: 1.1rem;
    }
    
    .product-card p {
        font-size: 0.9rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-item {
        padding: 1.5rem;
    }
    
    .contact-icon {
        width: 50px;
        height: 50px;
    }
    
    .contact-icon i {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .hero-section {
        height: 70vh;
        min-height: 500px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
        color: #000000;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 0.9rem;
        margin-bottom: 2.5rem;
    }
    
    .category-tabs {
        gap: 0.5rem;
        margin-bottom: 2.5rem;
    }
    
    .tab-btn {
        padding: 0.625rem 1rem;
        font-size: 0.85rem;
    }
    
    .products-grid {
        gap: 1.5rem;
        padding: 0 0.75rem;
    }
    
    .product-card {
        border-radius: 16px;
    }
    
    .product-image {
        height: 140px;
    }
    
    .product-content {
        padding: 1.25rem;
    }
    
    .product-card h3 {
        font-size: 1rem;
        margin-bottom: 0.5rem;
    }
    
    .product-card p {
        font-size: 0.85rem;
        margin-bottom: 1rem;
    }
    
    .product-category {
        font-size: 0.7rem;
        padding: 0.2rem 0.6rem;
    }
    
    .product-plus-icon {
        width: 28px;
        height: 28px;
        font-size: 1rem;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-card,
.faq-item,
.contact-item {
    animation: fadeInUp 0.6s ease forwards;
}

.product-card:nth-child(1) { animation-delay: 0.1s; }
.product-card:nth-child(2) { animation-delay: 0.2s; }
.product-card:nth-child(3) { animation-delay: 0.3s; }
.product-card:nth-child(4) { animation-delay: 0.4s; }
.product-card:nth-child(5) { animation-delay: 0.5s; }
.product-card:nth-child(6) { animation-delay: 0.6s; }

/* 导航栏激活状态 */
.nav-link.active {
    color: #2563eb;
}

.nav-link.active::after {
    background-color: #2563eb;
    width: 100%;
}

.nav-item .nav-link.active::before {
    color: #2563eb;
}

/* 搜索区域样式 */
.hero-section {
    position: relative;
    height: 80vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 80px;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: white;
    max-width: 800px;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    width: 100%;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #f3ecec;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    color: #f1f0f0;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

/* 搜索框样式 */
.search-container {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.search-box {
    display: flex;
    align-items: center;
    background: white;
    border-radius: 50px;
    padding: 0.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    max-width: 500px;
    width: 100%;
}

.search-box i {
    color: #666;
    margin: 0 1rem;
    font-size: 1.2rem;
}

.search-box input {
    flex: 1;
    border: none;
    outline: none;
    padding: 1rem;
    font-size: 1.1rem;
    background: transparent;
}

.search-box input::placeholder {
    color: #999;
}

.search-btn {
    background: #2563eb;
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-btn:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.4);
}

/* 产品支持区域样式 */
.product-support-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    position: relative;
}

.product-support-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, #e2e8f0 50%, transparent 100%);
}

.section-title {
    text-align: center;
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: #0f172a;
    letter-spacing: -0.02em;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: #64748b;
    margin-bottom: 4rem;
    font-weight: 400;
}

/* 分类标签样式 */
.category-tabs {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
    padding: 0 1rem;
}

.tab-btn {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(226, 232, 240, 0.8);
    color: #475569;
    padding: 0.875rem 1.75rem;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: default;
    white-space: nowrap;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.95);
    border-color: #cbd5e1;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* 产品网格样式 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.product-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 24px;
    padding: 0;
    text-align: left;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #252c36, #625485, #c05b60);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.product-card:hover::before {
    opacity: 1;
}

.product-image {
    width: 100%;
    height: 320px;
    margin: 0;
    border-radius: 0;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    position: relative;
}

.product-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(to top, rgba(255, 255, 255, 0.9), transparent);
    pointer-events: none;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateY(-20px);
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-content {
    padding: 2rem;
    position: relative;
}

.product-card h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 0.75rem; 
    line-height: 1.3;
    letter-spacing: -0.01em; 
    text-align: center;
    transition: color 0.3s ease;
}

.product-card:hover h3 {
    color: #000000;
}

.product-card p {
    color: #64748b;
    line-height: 1.6;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.product-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    width: 100%;
}

.product-category {
    font-size: 0.8rem;
    color: #0e0d11;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: rgba(139, 92, 246, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    margin-right: auto; 
}

.product-plus-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #4e6888, #8266c7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    margin-left: auto;
}

.product-card:hover .product-plus-icon {
    transform: scale(1.1) rotate(90deg);
    box-shadow: 0 6px 16px rgba(159, 165, 175, 0.4);
}

/* 常见问题区域样式 */
.faq-section {
    padding: 5rem 0;
    background: white;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid #e2e8f0;
    border-radius: 15px;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: #9cabcc;
    box-shadow: 0 4px 15px rgba(233, 236, 241, 0.1);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: #f8fafc;
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
}

.faq-question h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e293b;
    margin: 0;
    cursor: pointer;
    transition: color 0.3s ease;
}

.faq-question:hover h3 {
    color: #2563eb;
}

.faq-question:hover {
    background: #f1f5f9;
}

.faq-question i {
    color: #64748b;
    transition: transform 0.3s ease;
    cursor: pointer;
    font-size: 1.2rem;
}

.faq-question:hover i {
    color: #2563eb;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    opacity: 0;
}

.faq-item.active .faq-answer {
    padding: 1.5rem;
    max-height: 300px;
    opacity: 1;
}

.faq-answer p {
    color: #64748b;
    line-height: 1.6;
    margin: 0;
}

/* 售后咨询区域样式 */
.contact-section {
    padding: 5rem 0;
    background: #f8fafc;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: #2563eb;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    color: white;
    font-size: 1.5rem;
}

.contact-details h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1e293b;
}

.contact-details p {
    font-size: 1.1rem;
    color: #2563eb;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-details span {
    color: #64748b;
    font-size: 0.9rem;
}

/* 联系表单样式 */
.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.contact-form h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: #1e293b;
    text-align: center;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #374151;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.submit-btn {
    width: 100%;
    background: #2563eb;
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.4);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
        color: #000000;
    }
    
    .hero-content p {
        font-size: 1.1rem;
        color: #000000;
    }
    
    .search-box {
        flex-direction: column;
        border-radius: 15px;
        padding: 1rem;
    }
    
    .search-box input {
        margin: 1rem 0;
        text-align: center;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
        margin-bottom: 3rem;
    }
    
    .category-tabs {
        gap: 0.75rem;
        margin-bottom: 3rem;
    }
    
    .tab-btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 0 1rem;
    }
    
    .product-card {
        border-radius: 20px;
    }
    
    .product-image {
        height: 160px;
    }
    
    .product-content {
        padding: 1.5rem;
    }
    
    .product-card h3 {
        font-size: 1.1rem;
    }
    
    .product-card p {
        font-size: 0.9rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-item {
        padding: 1.5rem;
    }
    
    .contact-icon {
        width: 50px;
        height: 50px;
    }
    
    .contact-icon i {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .hero-section {
        height: 70vh;
        min-height: 500px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
        color: #000000;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 0.9rem;
        margin-bottom: 2.5rem;
    }
    
    .category-tabs {
        gap: 0.5rem;
        margin-bottom: 2.5rem;
    }
    
    .tab-btn {
        padding: 0.625rem 1rem;
        font-size: 0.85rem;
    }
    
    .products-grid {
        gap: 1.5rem;
        padding: 0 0.75rem;
    }
    
    .product-card {
        border-radius: 16px;
    }
    
    .product-image {
        height: 140px;
    }
    
    .product-content {
        padding: 1.25rem;
    }
    
    .product-card h3 {
        font-size: 1rem;
        margin-bottom: 0.5rem;
    }
    
    .product-card p {
        font-size: 0.85rem;
        margin-bottom: 1rem;
    }
    
    .product-category {
        font-size: 0.7rem;
        padding: 0.2rem 0.6rem;
    }
    
    .product-plus-icon {
        width: 28px;
        height: 28px;
        font-size: 1rem;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-card,
.faq-item,
.contact-item {
    animation: fadeInUp 0.6s ease forwards;
}

.product-card:nth-child(1) { animation-delay: 0.1s; }
.product-card:nth-child(2) { animation-delay: 0.2s; }
.product-card:nth-child(3) { animation-delay: 0.3s; }
.product-card:nth-child(4) { animation-delay: 0.4s; }
.product-card:nth-child(5) { animation-delay: 0.5s; }
.product-card:nth-child(6) { animation-delay: 0.6s; }

/* 导航栏激活状态 */
.nav-link.active {
    color: #2563eb;
}

.nav-link.active::after {
    background-color: #2563eb;
    width: 100%;
}

.nav-item .nav-link.active::before {
    color: #2563eb;
}